node-set($x), when $x is empty, should not halt XSLT processing

node-set($x), when $x is empty, should not halt XSLT processing

node-set is polymorphic; if called with a string, it returns a
node-set containing a text node with that content. The libxslt roll in
r425586 broke this behavior because Blink's fork of the node-set
extension returned a text node without an owner document. Fix that.

BUG=689977
Review-Url: https://codereview.chromium.org/2750943004
Cr-Commit-Position: refs/heads/master@{#457692}
(cherry picked from commit 3f6e482b7f13c1fc5bd68227321ef6da0ddf9937)

Review-Url: https://codereview.chromium.org/2772323005 .
Cr-Commit-Position: refs/branch-heads/3029@{#452}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed: https://chromium.googlesource.com/chromium/src/+/99ead7d1564d35a70799b7ee4c3821053fb3985c

[Oliver Chang, 2017-03-28 16:45:53]

Description was changed from

==========
node-set($x), when $x is empty, should not halt XSLT processing

node-set is polymorphic; if called with a string, it returns a
node-set containing a text node with that content. The libxslt roll in
r425586 broke this behavior because Blink's fork of the node-set
extension returned a text node without an owner document. Fix that.

BUG=689977

Review-Url: https://codereview.chromium.org/2750943004
Cr-Commit-Position: refs/heads/master@{#457692}
(cherry picked from commit 3f6e482b7f13c1fc5bd68227321ef6da0ddf9937)
==========

to

==========
node-set($x), when $x is empty, should not halt XSLT processing

node-set is polymorphic; if called with a string, it returns a
node-set containing a text node with that content. The libxslt roll in
r425586 broke this behavior because Blink's fork of the node-set
extension returned a text node without an owner document. Fix that.

BUG=689977

Review-Url: https://codereview.chromium.org/2750943004
Cr-Commit-Position: refs/heads/master@{#457692}
(cherry picked from commit 3f6e482b7f13c1fc5bd68227321ef6da0ddf9937)

Review-Url: https://codereview.chromium.org/2772323005 .
Cr-Commit-Position: refs/branch-heads/3029@{#452}
Cr-Branched-From:
939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed:
https://chromium.googlesource.com/chromium/src/+/99ead7d1564d35a70799b7ee4c38...
==========

[Oliver Chang, 2017-03-28 16:45:54]

Committed patchset #1 (id:1) manually as
99ead7d1564d35a70799b7ee4c3821053fb3985c.